Texas Instruments Chipcon Products CC2420 Manuale utente

SWRU034 Page 1/ 28

User Manual

Rev. 1.0

CC2420 ZigBee DK Development Kit

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Table of contents

INTRODUCTION ....................................................................................................................... 3

CC2420 ZIGBEE DK HARDWARE COMPONENTS ....................................................................... 5

CC2420 ZIGBEE DK SOFTWARE COMPONENTS ........................................................................ 5

OPTIONAL SOFTWARE COMPONENTS ......................................................................................... 8

CC2420DB PCB..................................................................................................................... 9

HARDWARE OVERVIEW........................................................................................................... 10

POWER SUPPLY SECTION ....................................................................................................... 10

RS-232 INTERFACE................................................................................................................ 10

MICROCONTROLLER AND USER INTERFACE.............................................................................. 10

EXTERNAL RAM..................................................................................................................... 12

MEMORY REQUIREMENTS ....................................................................................................... 12

CC2420DB LOW POWER MODE SUPPORT.............................................................................. 13

CC2420DB TEMPERATURE RANGE ........................................................................................ 13

JUMPER SETTINGS FOR CC2420DB CONTROL........................................................................ 13

CC2420DB CURRENT MEASUREMENT AND CONSUMPTION...................................................... 15

USING THE CC2400EB AND CC2420EM FOR ZIGBEE PACKET SNIFFING .................... 16

USING THE CC2420DB DEMONSTRATION BOARD WITH THE Z-STACK....................... 18

IEEE 64- BITS EXTENDED ADDRESS ....................................................................................... 18

CC2420DB Z-STACK DOWNLOAD AND DEBUGGING USING AVR STUDIO 4 .............................. 18

PREPROGRAMMED FUSES....................................................................................................... 20

CC2420DB DEVELOPMENT ENVIRONMENT FOR ZIGBEE APPLICATIONS ................................... 21

JTAG ICE .............................................................................................................................21

TROUBLESHOOTING ............................................................................................................ 25

IT DOES NOT WORK................................................................................................................. 25

REFERENCES ........................................................................................................................ 26

DISCLAIMER ........................................................................................................................... 28

TRADEMARKS......................................................................................................................... 28

LIFE SUPPORT POLICY............................................................................................................ 28

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Introduction

The CC2420 is a single-chip, IEEE 802.15.4 compliant and ZigBee™ ready RF transceiver. It

provides a highly integrated, flexible low-cost solution for applications using the world wide

unlicensed 2.4 GHz frequency band. The CC2420 ZigBee DK Development Kit is a natural

supplement to the already established Chipcon CC2420 kits, i.e. the CC2420DK

Development Kit and the CC2420DBK Demonstration Board Kit. The hardware is

representative of an actual application, and is well suited as a prototyping, evaluation and

demonstration platform targeting various ZigBee applications. With this kit a ZigBee Logical

device type mapped to the IEEE 802.15.4 Full Function and Reduced Function Devices (FFD

and RFD) using the CC2420 can be demonstrated. An FFD can take the role of a ZigBee

Coordinator, Router, or End Device depending on the ZigBee logical device type

configuration. An RFD can act as ZigBee End Device and cannot serve as a ZigBee

Coordinator or ZigBee Router.

The CC2420 ZigBee DK has the capability to demonstrate ZigBee low power capabilities.

The CC2420 ZigBee DK is bundled with the Figure 8 Wireless ZigBee stack for evaluation,

demonstration, prototyping and developing purposes of the Z-Stack features. The hardware

platform is based on the CC2420DB Demonstration Board. The hardware contains an

integrated PCB antenna, the IEEE 802.15.4 compliant RF transceiver CC2420 with

necessary support components, an Atmel Atmega128L AVR microcontroller, 32 kB external

RAM, and, as well as a joystick, buttons and LED’s that can be used to demonstrate the

current ZigBee Home Lightning Profile. Please note that CC2420DB includes this memory

because it can be used for debugging purposes, to buffer and store data if desired. The 32kB

external RAM size is not a requirement nor necessary for a low cost ZigBee logical device.

The CC2420DB is also furnished with connectors where the internal signals on the PCB are

available for further sensor daughter boards addition to easy add additional profile hardware

when desired. The details of the CC2420DB features are described in the CC2420DBK User

Manual. Please refer to the references section of this document.

The CC2420 ZigBee DK provides, in addition to five CC2420DB’s, a CC2400EB that together

with CC2420EM can utilize the capability of running Chipcon’s Packet Sniffer with the new

ZigBee packet parser addition.

This User Manual describes how to use the CC2420 ZigBee DK Development Kit. The

Figure 8 Wireless Z-Stack, tools and documentation will be provided as a distribution

package available for download from the Chipcon ZigBee Developer Site after the purchase

of this kit. When purchased, customers will be provided with a user name and password to

access this site to download the Z-Stack End Customer distribution package. The Chipcon

ZigBee Developer site will be available in the beginning of October.

Please refer to the reference section of this document for links to Atmel’s documentation on

how to use their tools.

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Your CC2420 ZigBee DK Development Kit should contain the following items:

Kit contents

Item Number of articles

Demonstration Board (CC2420DB) 5

Evaluation Board (CC2400EB) 1

Evaluation Module (CC2420EM) 1

CC2420 sample kit 1

Quick Start instructions 1

CC2420DB Important Notice 1

User name and password for Chipcon ZigBee Developer Site 1

Atmel JTAG ICE mkII 1

Power Supplies (global AC-to-DC adapter) 6

Battery clip/adapter 5

RS-232 cable 3

USB cable 1

2.4 GHz Antenna 1

Important:

Contact your local telecommunication authorities before transmitting an RF signal to ensure

that there are no local restrictions on the use of the 2.400 –2483.5 MHz ISM band. The

CC2420 operates in the 2.4 GHz frequency band. Although this frequency band is usually

described as “world-wide”, some countries do not allow unlicensed operation in this band.

SWRU034 Page 5/ 28

CC2420 ZigBee DK Hardware Components

Table 1 below contains a description of the hardware components included in the CC2420

ZigBee DK Development Kit.

Hardware Component Number of pcs. Description

CC2420DB 5 Each CC2420DB demonstration board

contains a CC2420 with necessary support

components to develop a full functional IEEE

802.15.4 or ZigBee™ device. The boards

contain an Atmel ATMega128L AVR

microcontroller, external RAM, a PCB antenna,

as well as a RS-232 serial port, joystick,

potentiometer, temperature sensor, buttons

and LED’s that can be used to implement a

user interface for applications.

RS-232 Cable 3 RS-232 cable for connection of the CC2420DB

boards to a PC.

CC2400EB 1 CC2420 transceiver motherboard. Connects to

a PC to run the Chipcon Packet Sniffer

software. RF Performance evaluation is also

possible.

CC2420EM 1 CC2420 transceiver daughter board, connects

to the CC2400EB board.

USB Cable 1 For connection of the CC2400EB / CC2420EM

to a PC.

Antenna

1 50Ω quarter-wave monopole, SMA male

connector for use with CC2420EM

Power supply 3 DC Power supply (with global connectors) for

use with the CC2420DB / CC2400EB.

Atmel JTAGICE mkII 1 Atmel JTAG based debug / programming tool.

Connects to PC through USB or serial port.

USB and RS-232 Cables for use with the

JTAG ICE are included.

Battery Clip 5 Use to connect 3 x 1.5 AA batteries to

demonstrate low power capabilities

Table 1: CC2420 ZigBee DK Hardware Components

CC2420 ZigBee DK Software Components

The table below contains a description of the software components included in the CC2420

ZigBee DK. The software components also include software, which has been licensed from

Figure 8 Wireless (www.figure8wireless.com ).

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Software component Description

Chipcon Packet Sniffer IEEE 802.15.4 / ZigBee packet sniffer. Downloadable from the

Chicpon web site. Runs on the CC2400EB / CC2420EM

hardware platform, and connects to a PC through a USB

connector.

Chipcon MAC Layer

Object Code

Object code for Atmel AVR. Included in library form with Z-Stack.

GCC Tool See download instructions in Figure 8 Wireless Z-Stack User’s

Guide for the CC2420DB

Atmel AVR Studio See download instructions in Figure 8 Wireless Z-Stack User’s

Guide for the CC2420DB

Programmer’s Notepad See download instructions in Figure 8 Wireless Z-Stack User’s

Guide for the CC2420DB

Figure 8 Wireless

ZigBee Stack (“Z-

Stack”)

Mix of Source and Object code for Atmel AVR. Complete

implementation of the ZigBee Alliance specification. Compliant

with the ZigBee specification v 0.92, and updated upon ZigBee

specification changes. Full ZigBee security functionality will be

available by v1.00 release.

Included Documentation:

•User’s Guide (including instructions on how to obtain

Atmel and GCC tool sets free of additional charges)

•API descriptions for each ZigBee layer

•Programmers Guides for each sample application (see

below)

•Serial Port Interface Documentation

•OS Abstraction Layer (“OSAL”) Documentation

•ZigBee Implementer’s Guide (packaged in upcoming

releases)

Figure 8 Wireless

Sample Applications

Sample application source code for Home Control – Lighting

ZigBee Profile, including

•Switch Remote Control

•Switch Load Controller

•Light Sensor Monochromatic

•Dimmer Remote Control

•Dimmer Load Controller

•Occupancy Sensor

Sample application source code for customer specified Profiles

and applications, including

•Generic Application

•Serial Application

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Software component Description

Figure 8 Wireless

Z-Configurator

Z-Configurator (Executable): The Z-Stack Configurator is a

Windows application which enables automated customization of

ZigBee enabled applications.

Configurator features include:

•Selection of the ZigBee logical target device mapped to a

RFD or FFD.

•Selection of resources to support Association Tables,

Routing Tables, Binding Tables. In later releases,

interactive entry/feedback to permit iterative changes for

application optimal setting will be provided.

•Selection of Profiles and assignment to Endpoints.

•Selection of Device Profile network configuration

elements (beacon order, etc.).

•Automated extraction of appropriate source code and

libraries into build directory to permit creation of device

according to selections.

•End customer can further optimize resulting application.

Figure 8 Wireless

Z-Profile Builder

Z-Profile Builder (Executable): The Z-Stack ZigBee Profile

Builder is a Windows application, which enables users to create

their own profiles. The application allows the customer to

generate profiles, which can be ported into the Z-Stack

Configurator for creation of a customer specified profile assigned

to a device endpoint.

Profile Builder will enable the end customer to do the following:

•Create a new profile based on a ZigBee Alliance

assigned Profile ID.

•Define proprietary Devices based on the customer-

defined Profile.

•Define Clusters and Attributes which will form the basis of

messaging between the customer’s devices.

•Advertise Clusters on Endpoints to enable standard

ZigBee Service Discovery and Binding operations to work

using the customers proprietary Profile, Devices and

Clusters.

•Permit the customer to incorporate and utilize standard

ZigBee profiles, advertising these on a specific interface,

to permit a controlled level of interoperability (if desired)

with other standard ZigBee devices while still enabling

operation as a proprietary device.

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Software component Description

Figure 8 Wireless

Z-Trace

Z-Trace ZigBee Protocol Stack Trace Tool (Executable):

The Z-Trace is a Windows application running on Windows 2000

Pro or Windows XP Pro. The Z-Trace is designed to fulfill test and

debug functions, and operates the attached ZigBee/IEEE

802.15.4 CC2420DB through a serial cable connection.

•Permit viewing of trace and debug information from a

target unit under test

The Z-Trace consists of the following components:

•Windows executable

•Z-Trace User’s Manual and Release Notes

Table 2: CC2420 ZigBee DK Software Components

Optional software components

Table 3 below contains a description of the optional software components available

separately for the CC2420 ZigBee DK Development Kit.

Software component Description

Figure 8 Wireless

ZigBee Stack

Source code. Compliant with the ZigBee specification v 0.92, and

updated upon ZigBee specification changes. Contact your local

Chipcon sales office for further information.

Chipcon MAC layer

source code

Source code for the Chipcon MAC Sublayer. Available free of

charge, through the MAC software license agreement. Contact

your local Chipcon sales office for further information.

Table 3: CC2420 ZigBee DK Optional Software Components

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CC2420DB PCB

The PCB picture provides an overview of the CC2420DB with description of the various

components embedded on the PCB.

Figure 1: CC2420DB overview

AVR ISP

connector

Temp. sensor

PCB

antenna

Buttons

RS-232

port

Joystick

3.3V voltage

regulator

POT

LED’s

4-10 V

DC-jack

Optional 9V or

3x 1.5 AA

batteries

CC2420 RF

section

MCU sectionJTAG connector

External RAM

32 kB

SWRU034 Page 10/ 28

Hardware Overview

The hardware platform of CC2420 ZigBee DK is based on already established Chipcon

CC2420 kits. Detailed information about the hardware and software included in this kit can be

downloaded from the Chipcon CC2420 product site.

http://www.chipcon.com/index.cfm?kat_id=2&subkat_id=12&dok_id=115

Power Supply Section

The power supply section contains two voltage regulators. One is an external 3.3 V regulator

for use by the microcontroller and the I/O pins of the CC2420. The second is an internal

regulator of CC2420 used to generate the 1.8 V supply applied for powering of the CC2420

core.

A diode prevents permanent damage if wrong polarity is applied to the board. There are two

power connectors; a 2.5mm DC jack-type connector allows you to connect an unregulated

battery eliminator easily (the positive supply is on the center pin), and a connector for a 9V

battery on the bottoms side of the PCB. We recommend that 3 or 4 AA or AAA alkaline cells

are used to power the CC2420DB if a suitable battery pack is used.

RS-232 Interface

A serial port is included on the CC2420DB. This port can be used with the Figure 8 Wireless

Z-Trace. The port includes support for RTS/CTS-type hardware flow control (handshaking).

This port is per default always enabled by a jumper. See the jumper settings for

demonstration board control.

Microcontroller and User Interface

The microcontroller used is an AVR ATmega128L from Atmel. This controller has 128 kB of

Flash program memory, 4 kB of SRAM data memory and 4 kB of non-volatile EEPROM data

memory. The controller is interfaced to the CC2420 via its built-in SPI interface as well as few

general-purpose I/O pins.

The MCU is also connected to four LEDs, a joystick and an extra button for user interface

purposes. The different examples use these peripherals differently. An analogue temperature

sensor, a potentiometer and 32 kB of external RAM are also included.

An ISP and a JTAG ICE connector are provided for programming the AVR without using the

serial port. In this case an Atmel AVR JTAG or ISP programmer should be connected to their

respective connectors.

All of the I/O pins are connected to footprints for 2 x 10 pin-row connectors, P3 and P4. These

connectors are compatible with Agilent logic analyzer probes, and can be used either for

testing or for prototyping. For instance, it is possible to add a daughter board containing

additional circuitry using these connectors.

Connector P3 pinout

number

Signal name in

schematic

Pin usage AVR pin

1 Not Connected

(NC)

Not Applicable (N/A) N/A

2 Unregulated supply voltage

(Insert R101 to connect)

N/A

3 FORCE_ON RS-232 Force On N/A

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